Harmonic Drive FHA-Cmini Series, Manual, Page: 58 / 68

3-3 Installation location and installation
Installation
3-5
1
2
3
4
5
6
7
8
9
10
11
Apx
In
sta
lla
tio
n
2
Fasten the flange of the actuator on the load machine with flat washers and high-tension
bolts.
When tightening, use a torque wrench to control the tightening torque.
The tightening torques are shown in the table below:
Model
Item
FHA-8C FHA-11C FHA-14C
Output
shaft
Flange
Output
shaft
Flange
Output
shaft
Flange
Tightening
torque
Screw,
hole depth
6-M3
Depth 5
4-M3
6-M4
Depth 5
4-M4
6-M5
Depth 7
4-M5
N·m 2 1.2 4.5 2.7 9.0 5.4
kgf·cm
20 12 46 28 92 55
3
Refer to the HA-800 or HA-680 driver manual for wiring work.
4
Motor cable and encoder cable
Do not pull the cables with a strong force. The connection points may be damaged. Install the
cable wiring with slack so that no tension is applied to the actuator. Provide a sufficient bending
radius (R = 40 mm or more), especially when the cable flexes.
Do not apply torque or load to the hollow shaft (sleeve).
The hollow shaft (sleeve) is adhered to the output rotary shaft. When a load is applied
to the hollow shaft (sleeve), delamination may occur on the output shaft and hollow
shaft (sleeve).
Do not apply or use any torque, moment load or thrust load directly to the hollow shaft
(sleeve).
* The shape of the hollow shaft will only support the incremental encoder.
Do not disassemble/reassemble the actuator.
The actuator uses many precision parts. We cannot guarantee if assembly or
disassembly by the customer will cause lower precision and performance.
Sleeve
Output rotary shaft
R = 40 mm or more
CAUTION
CAUTION